Crypto Education

Stablecoin Hub: USDT, USDC, DAI, Yield, Depegs and Regulation

10 min read
Stablecoin hub

Stablecoins look alike in a wallet, but they behave differently under stress. A dollar token backed by Treasury bills, one backed by locked-up crypto and one backed by a futures hedge each fail in different ways and give you different rights to redeem. This hub maps every Shironeko stablecoin guide. Use it to choose a coin for your purpose, understand the reserve and regulatory picture after the GENIUS Act, and find the guide to read next. For the fundamentals, start with our stablecoin guide.

  • There are four main designs: fiat-reserve (USDT, USDC), crypto-collateralized (DAI, USDS), synthetic (USDe) and algorithmic. Their risks rise roughly in that order.
  • Total stablecoin supply passed $300 billion in 2026. USDT is roughly two and a half times the size of USDC. Check DefiLlama or the issuers’ transparency pages for current figures.
  • The US GENIUS Act became law in July 2025. Its rules for issuers take effect by January 18, 2027 at the latest, and they include a ban on issuers paying interest to holders.
  • Stablecoins are not bank deposits and carry no FDIC insurance. Even large, well-backed coins have briefly lost their peg.
  • Stablecoin yield always comes from somewhere: borrowers, traders or a hedging strategy. If a platform cannot explain the source, treat that as a red flag.

Start here: which guide do you need?

If you only want the basics (what a stablecoin is, why traders use them, how a peg works), read the stablecoin guide. To choose a coin, the best stablecoins compares the leading options by backing and use case. If safety is your first concern, are stablecoins safe? sets out each failure mode. The most common head-to-head question is covered in USDT vs USDC.

Stablecoin types compared

A stablecoin is only as stable as the assets backing it, and only as useful as your right to redeem it. The table compares the four designs by the questions that matter in a crisis.

Type Examples What backs it Who can redeem at $1 Can tokens be frozen? Typical failure mode
Fiat-reserve USDT, USDC, PYUSD, USAT Cash, short-term Treasuries, repos (USDT also holds other assets) Verified customers, usually with minimums; everyone else sells on the market Yes, the issuer can freeze addresses Doubts about reserves or access to the bank holding them (USDC in March 2023)
Crypto-collateralized DAI, USDS Over-collateralized crypto plus real-world assets and other stablecoins Anyone, through the protocol’s swap module or by repaying vaults DAI no; USDS has a governance-controlled freeze function Collateral crash or governance error
Synthetic (hedged) USDe Crypto and stablecoins paired with short perpetual futures Approved minters; everyone else sells on the market Depends on the contract and the minting route Negative funding rates, exchange counterparty failure
Algorithmic UST (failed 2022) Little or no hard collateral; a companion token absorbs volatility The mechanism, while it holds up Varies Death spiral once confidence breaks

The major stablecoins

Tether (USDT) is the largest stablecoin and the default trading pair on most exchanges. It is especially strong on Tron and internationally. Its reserves are reported in quarterly attestations, not full audits. In January 2026 Tether also launched USAT, a separate US-regulated token issued through Anchorage Digital Bank, while USDT continues to operate globally. USDC, issued by Circle, holds cash and short-term Treasuries, publishes monthly attestations and is widely integrated across DeFi and US platforms. DAI is the decentralized option. Sky (formerly MakerDAO) now issues it alongside USDS, its newer token, and governance has moved from MKR to SKY. Ethena’s USDe is a different kind of dollar again. Our Ethena guide explains how its yield comes from funding payments, and why USDe briefly printed $0.65 on one exchange during the October 2025 crash. Algorithmic stablecoins are the cautionary tale: the 2022 TerraUSD collapse wiped out tens of billions of dollars in days.

Which stablecoin for which job?

No stablecoin is best for every job. Match the coin to what you are doing, and spread larger balances across more than one issuer.

Use case Common choice Why Watch out for
Trading on centralized exchanges USDT Deepest pairs and widest listing Limited availability for EU users under MiCA
US payments, compliance-minded holding USDC US-regulated issuer, monthly attestations Concentrated bank and Treasury exposure
DeFi collateral and lending USDC, DAI/USDS, USDT Deep integration with Aave and Morpho markets Smart-contract and liquidation risk
Decentralized, no single issuer DAI or USDS Protocol-governed, over-collateralized Real-world-asset and governance exposure
Yield-bearing dollar sUSDe, sUSDS and similar Yield built into the token Variable rate; extra layers of risk
Cheap cross-border transfers USDT on Tron, USDC on Solana or L2s Low network fees Sending on the wrong network

Buying and moving stablecoins

Buying is straightforward on any major exchange. The step that loses people money is withdrawal, because USDT and USDC exist as separate tokens on many chains, and sending on a network the destination does not support can make the funds unrecoverable. How to buy USDT covers TRC-20 vs ERC-20 and other network choices. How to buy USDC covers Base, Solana and Ethereum withdrawals and self-custody. The broader how to buy crypto hub compares payment methods and fees.

When moving stablecoins to Avalanche, Polygon or another chain, check whether you will receive the issuer’s native token or a bridged copy, which some apps label with a suffix such as “.e”. Native USDC can move between supported chains through Circle’s own transfer protocol, while bridged versions depend on the bridge staying solvent. The bridging hub compares routes and bridge risk. Store larger balances using the advice in the wallets and security hub.

Earning yield on stablecoins

There are four main routes, set out in how to earn interest on stablecoins: custodial earn products, DeFi lending, liquidity pools and yield-bearing tokens. Each adds a layer of risk on top of the stablecoin itself. Custodial products add company risk, the risk that sank Celsius depositors in 2022. DeFi lending adds smart-contract and bad-debt risk. Liquidity pools add a small amount of impermanent loss. Yield-bearing tokens add the risks of the strategy behind them.

If you need to withdraw at any time, supplying to a large lending market usually lets you exit whenever the pool has unborrowed liquidity. Fixed-rate options, such as principal tokens or term products, lock you in until maturity. Rates move with borrowing demand, so compare averages rather than today’s figure. For protocol-level detail, the DeFi hub covers Aave, Morpho, Pendle and the lending markets where most stablecoin yield originates.

Stablecoin risks: reserves, depegs and failure modes

Reserve and collateral risk

A fiat-reserve coin depends on the quality and accessibility of its reserves. A crypto-backed coin depends on collateral values, liquidation mechanics and governance decisions. A synthetic dollar depends on hedging venues and funding rates. Read the issuer’s latest attestation or the protocol’s collateral dashboard rather than marketing summaries.

Depeg risk

Our stablecoin depegging guide explains why pegs break and how most recover. Depegs that recover tend to involve a temporary liquidity or confidence shock. Depegs that don’t recover involve backing that was never there.

Event When What happened Outcome
TerraUSD (UST) May 2022 Algorithmic death spiral with LUNA Permanent collapse
USDC March 2023 Part of its reserves stuck at failed Silicon Valley Bank; low of roughly $0.87–0.88 Repegged within days once deposits were guaranteed
USDe October 10, 2025 Fell to about $0.65 on one exchange’s order book during a liquidation cascade On-chain price stayed near $1; recovered quickly
Stream Finance xUSD November 2025 A roughly $93 million loss disclosed at an external fund manager Lost most of its value; hit DeFi vaults that held it

Issuer and freeze risk

Centralized issuers can freeze addresses and must follow sanctions and law-enforcement orders. That protects victims of theft, but it also means your tokens can be blocked. Decentralized designs swap that risk for smart-contract and governance risk.

Regulation: the GENIUS Act and beyond

The GENIUS Act, signed on July 18, 2025, is the first US federal framework for “payment stablecoins”. Its key points:

  • Only permitted issuers can offer them: bank subsidiaries, federally licensed non-banks and qualifying state-regulated issuers.
  • Reserves must be held 1:1 in cash, short-dated Treasuries, repos and similar assets.
  • Issuers must publish monthly reserve reports.
  • Issuers cannot pay interest or yield to holders.
  • Holders get priority if an issuer goes insolvent.

The law takes effect on January 18, 2027 or 120 days after final regulations, whichever comes first. The OCC finalized its rule in October 2026 with the January 2027 date, and other agencies’ rules are still in progress. This framework is also what makes “stablecoin as a service” possible: banks and fintechs can launch a branded dollar token through a licensed issuer, as Tether did with USAT through Anchorage Digital Bank.

Whether exchanges and other third parties may pay stablecoin “rewards” is still disputed. That question helped stall the CLARITY market-structure bill, which failed a Senate procedural vote 49–50 in September 2026. In the EU, MiCA has applied to stablecoins since mid-2024, and several exchanges restricted USDT for European users as a result. Check the current rules where you live, because they are still changing.

CBDCs vs stablecoins

A central bank digital currency is state money in digital form, while a stablecoin is a private liability backed by reserves or collateral. What is a CBDC explains retail versus wholesale designs, China’s e-CNY and the digital euro. CBDC vs stablecoins compares issuer, privacy, programmability and adoption. The US has taken the opposite path to China and the EU. A January 2025 executive order bars federal agencies from creating a US CBDC, while the GENIUS Act regulates private stablecoins.

Browse every stablecoin guide

Start here

The major stablecoins

Buying, yield and risk

CBDCs

FAQ

What are stablecoins?

Stablecoins are cryptocurrencies designed to hold a steady value, usually one US dollar. Reserves of cash and Treasuries, over-collateralized crypto or a hedging strategy maintain that value. Traders use them to park funds between trades, DeFi users lend and borrow them, and businesses use them for fast cross-border payments. They are not bank deposits and are not insured. Our stablecoin guide covers the basics.

Is USDT or USDC safer?

Neither is risk-free. USDC is generally considered more transparent: Circle is US-regulated and publishes monthly attestations of cash and short-term Treasuries. USDT is larger and more liquid but has faced more questions about reserve disclosure. USDC’s worst depeg came in March 2023, when part of its reserves was held at Silicon Valley Bank. Many holders split larger balances between both. Compare them in USDT vs USDC.

What is the best stablecoin in 2026?

It depends on the job. USDT leads on exchange liquidity, USDC on US regulatory clarity, DAI and USDS on decentralization, and USDe on built-in yield, which comes with more moving parts. Judge any coin by its backing, how transparent its reserves are, your right to redeem, and its liquidity on the chain you use, not by headline yield. Our best stablecoins list compares the leading options.

How can I earn stablecoin interest without lockups?

Supplying stablecoins to a large DeFi lending market, or to an exchange’s flexible earn product, usually allows withdrawal at any time. On-chain, withdrawals depend on the pool having unborrowed liquidity; on an exchange, they depend on the company’s solvency. Rates float with borrowing demand. Avoid fixed-term products if you need instant access, and check where the yield comes from. Details are in how to earn interest on stablecoins.

What is the difference between a stablecoin and a CBDC?

A CBDC is issued by a central bank and is a direct claim on the state, like digital cash. A stablecoin is issued by a private company or protocol and is only as good as its reserves or collateral. Stablecoins already circulate widely on public blockchains, while most CBDCs are still in pilot or research stages. The US has ruled out a federal CBDC for now. See CBDC vs stablecoins.

Crypto is volatile and risky; this is education, not financial advice. Do your own research.

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